JP2001249375A - Imaging device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an imaging device equipped with a lens cover which is moved by a small driving force. SOLUTION: This imaging device for imaging on image is equipped with a lens part 12 forming the image, the lens cover 20 capable of moving between a closing position 202 on the front surface of the lens part 12 and an opening position 200 which is other than the front surface thereof, a base attached to the lens cover 20, a spring for opening/closing 50 energizing the lens cover 20, when the lens cover 20 is positioned at least either the opening position 200 or the closing position 202, and a motor 70 energizing the lens cover 20 in an opposite direction to the spring 50. The spring 50 has both ends attached to a cover-side attaching part provided on the lens cover 20 and a base-side attaching part attached to the base, and a circulating part 56 where a spring member constituting the spring 50 circulates in space between the cover-side attaching part and the base-side attaching part. The circulating part 56 generates the force for energizing the lens cover 20 according to the change of a spring end distance 80 associated with the opening/closing of the lens cover 20.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to an image pickup apparatus. In particular, the present invention relates to an imaging device having a lens cover that can be freely opened and closed.

[0002]

2. Description of the Related Art A conventional image pickup apparatus is provided with an openable and closable lens cover for protecting a lens in order to prevent dust from being attached to the lens and from being damaged by friction when photographing is not performed. Various mechanisms are used for opening and closing the lens cover. For example, a lens cover that moves between an open position and a closed position by linear motion or rotation is known.

[0003]

In recent years, users' demands for image pickup apparatuses have been diversified, and smaller and more attractive image pickup apparatuses have been preferred. Along with this, it is required to reduce the size of each component constituting the imaging apparatus, particularly the components of the drive system, and to suppress the driving force for realizing this.
A lens cover that is excellent in appearance and convenient is also required.

Accordingly, an object of the present invention is to provide an imaging device capable of solving the above-mentioned problems. This object is achieved by a combination of features described in the independent claims. The dependent claims define further advantageous embodiments of the present invention.

[0005]

According to a first aspect of the present invention, there is provided an image pickup apparatus for picking up an image, comprising: a lens section for forming an image; a closed position on a front surface of the lens section; A lens cover movable between open positions other than the front surface, a base attached to the lens cover, and attaching the lens cover when the lens cover is located in at least one of the open position and the closed position. A biasing opening / closing spring; and a motor for biasing the lens cover in a direction opposite to the opening / closing spring. The opening / closing spring is provided between the cover-side mounting portion provided on the lens cover and both ends mounted on the base-side mounting portion mounted on the base, and between the cover-side mounting portion and the base-side mounting portion. A revolving portion around which a spring member constituting the opening / closing spring revolves in a space, and the revolving portion biases the lens cover in accordance with a change in a distance between both ends of the spring accompanying opening and closing of the lens cover. Generate force.

[0006] The base includes an open position stop portion with which the end of the lens cover abuts when the lens cover is at the open position, and the lens cover when the lens cover is at the closed position. And a closed position stop where the other end abuts.

[0007] The opening / closing spring may bias the lens cover from one of the open position and the closed position to the other.

The opening / closing spring biases the lens cover in the cover opening direction when the lens cover is at the open position, and when the lens cover is at the closed position, the lens cover is open. May be arranged to bias the cover in the cover closing direction.

Both ends of the opening / closing spring are mounted such that both ends of the opening / closing spring are closest when the lens cover is located at a predetermined opening / closing switching position between the open position and the closed position. You may.

When the lens cover is located at the closed position, the force that the opening / closing spring biases in the cover closing direction is such that when the lens cover is located at the open position, the opening / closing spring is pressed. The force urging in the cover opening direction may be larger.

The lens cover may include a cover plate having a shape corresponding to the lens, and a cover foot extending from the cover plate in a plate surface direction. The lens cover may rotate around a rotation axis provided on the cover foot.

The base has a guide for guiding an end of the cover plate farthest from the rotation axis when the lens cover moves between the open position and the closed position. Is also good.

[0013] A power switch for starting and stopping the supply of power to the image pickup apparatus may be further provided. When the power switch is turned on, the motor may move the lens cover in the cover opening direction.

[0014] A power switch for starting and stopping the supply of power to the image pickup apparatus may be further provided. When the power switch is turned off, the opening / closing motor may move the lens cover in the cover closing direction, and when the lens cover stops at the closed position, the motor stops and power is turned off. Is also good.

[0015] The image processing apparatus may further include a flash unit that projects from a storage position in the imaging device to a projection position outside the imaging device when the image is captured. When the opening / closing motor moves the lens cover in the cover opening direction,
The flash unit may protrude. When the power switch is turned on, the opening / closing motor may move the lens cover in the cover opening direction, and the flash unit may protrude.

The above summary of the present invention does not list all of the necessary features of the present invention, and a sub-combination of these features can also be an invention.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described through embodiments of the present invention. However, the following embodiments do not limit the claimed invention and have the features described in the embodiments. Not all combinations are essential to the solution of the invention. Note that the cover-side mounting portion and the base-side mounting portion used below refer to “moving-end hooking portion” and “fixed-end hooking portion” in claims, respectively.

FIG. 1 shows the appearance of the front of the digital camera 10. The digital camera 10 includes a lens unit 12, a lens cover 20, and an opening 18 on the front surface. Further, a power switch 14 and a flash unit 16 are provided above the digital camera 10. The lens unit 12 is provided inside the opening 18. The lens cover 20 is attached to the housing 100 so as to be movable between the front side and the front side of the lens unit 12, that is, between the bottom side of the digital camera 10. When photographing is not performed, the lens cover 20 is located in front of the lens unit 12 to protect the lens unit 12. That is, the lens cover 20 is closed. When taking a picture, the lens cover 20 moves to the bottom side of the digital camera 10, and the lens section 12 appears through the opening 18 so that the picture can be taken. That is, the lens cover 20 opens. Thus, when the power switch 14 is turned on, the lens cover 20 is turned on.
Is opened, and the lens cover 20 is closed when the power switch 14 is turned off. That is, the lens cover 20 is interlocked with the power switch 14. Thus, the lens cover 20 can be opened and closed without an instruction from the user.

The flash unit 16 is stored in a storage position inside the digital camera 10 when taking an image. When the flash unit 16 is used, the flash unit 16 projects from the digital camera 10 and is located at the projecting position. The flash unit 16 shown in FIG. 1 is located at the protruding position. As described above, the flash unit 16 is provided so as to be movable between the storage position and the protruding position.

FIG. 2 shows the back surface of the housing 100 of the digital camera 10 and the lens cover 20. A base 46 to which the lens cover 20 is attached is provided on the back surface of the housing 100, and the lens cover 20 is fixed to the housing 100 while being attached to the base 46. The lens cover 20 moves between an open position 200 in which the lens unit 12 appears to the outside and a closed position 202 located in front of the lens unit 12. The lens cover 20 has a circular cover plate portion 22 corresponding to the shape of the lens portion 12 and a cover foot portion 24 extending from the cover plate portion 22 in the plate surface direction of the cover plate portion 22. The cover foot 24 is held by a rotation shaft 26 fixed to the housing 100. The lens cover 20 rotates between an open position 200 and a closed position 202 about a rotation shaft 26.

The housing 100 moves when the lens cover 20 moves between the open position 200 and the closed position 202.
It has a guide 44 for guiding the lens cover 20. The guide 44 is provided with a groove into which an end of the cover plate 22 farthest from the rotation shaft 26 is to be fitted. When the lens cover 20 moves between the open position 200 and the closed position 202, the lens cover 20 is held by the rotating shaft 26 and the guide 44. Thus, the lens cover 2
0 can stably rotate because the through-hole 28 and the end of the cover plate 22 are held.

When the lens cover 20 is at the open position 200, the housing 100 has an open position stop 40 with which the end of the cover plate 22 contacts, and when the lens cover 20 is at the closed position 202, A closed position stop portion 42 with which the other end of the plate portion 22 contacts. As described above, when the cover plate portion 22 is located at the open position 200 and the closed position 202, it comes into contact with the open position stop portion 40 and the closed position stop portion 42, respectively. Therefore, the lens cover 20 can be stopped stably.

Alternatively, the base 46 may be provided on the housing 100 integrally with the open position stop 40, the closed position stop 42, and the guide 44. That is, the lens cover 20 may be directly attached to the housing 100.

As another form, the open position stop 40
The closed position stopping portion 42 has a groove into which the lens cover 20 fits, and may be provided integrally with the guide 44. Also in this case, the lens cover 20 is in the open position 200 and the closed position 2.
02, and can stably stop at the open position 200 and the closed position 202.

FIG. 3 is a view of the lens cover 20 as viewed from the axial direction of the rotation shaft 26. The lens cover 20 has a convex portion 42 provided linearly on the outer peripheral portion thereof. Convex part 42
Contacts the housing 100 when the lens cover 20 rotates between the open position 200 and the closed position 202. The convex portion 42 is provided over substantially the entire outer peripheral portion. As described above, since the protrusions 42 are provided linearly, that is, continuously, the lens cover 20 is hooked on the surface of the housing 100 when rotating between the open position 200 and the closed position 202. It is possible to smoothly slide on the housing 100 without the need. The longest part and the shortest part of the projection 42 from the cover support shaft 60 are notched. As described above, the convex portion 42 of the longest distance portion
Is notched, the distance from the cover support shaft 60 to the longest portion is shortened, and the area occupied by the trajectory of the rotation of the lens cover 20 can be reduced.

FIG. 4 is a sectional view of the lens cover 20 as viewed from a direction perpendicular to the axial direction of the rotation shaft 26. The protrusion 42 is half-punched, slightly protrudes toward the housing 100, and the upper portion of the protrusion contacts the housing 100. As another form, the convex portion 42 is formed on the lens cover 2.
It may be bent so as to be inclined toward the housing 100 side as compared with portions other than the 0 convex portion 42. Also in this case, the projection 42
Contacts the housing 100. Lens cover 20
Rotates between an open position 200 and a closed position 202 with the upper portion of the convex portion 42 in contact with the housing 100. Therefore, the sliding resistance is smaller than when the entire lens cover 20 rotates in a state in which the lens cover 20 contacts the housing 100. Therefore, the lens cover 20 can be rotated with a smaller force. Also, the convex portion 42 of the lens cover 20
The other parts do not come into contact with other members, so that they are not damaged when sliding. Therefore, the portion of the lens cover 20 that is exposed to the outside from the opening 18 is the lens cover 20.
Even if the opening and closing are repeated, a favorable appearance can be maintained without being damaged. As another form, a convex member may be adhered to the outer peripheral portion of the lens cover 20 as the closed position stop portion 42.

FIG. 5 is a perspective view showing the structure of the lens cover 20 attached to the back surface of the housing 100, the opening / closing spring 50 and the motor 70 for opening and closing the lens cover. The lens cover 20 has a through hole 28, a pin 3
0, and a moving end hanging portion 32. The rotation shaft 26 passes through the through hole 28 and holds the lens cover 20 so as to be rotatable. One end of the opening / closing spring 50 is hooked on a fixed end hook portion 34 provided on the housing 100. The moving end hook 32 hooks the other end of the opening / closing spring 50 and urges the lens cover 20.

The motor 70 rotates the lens cover 20 between the open position 200 and the closed position 202. Motor 70
Has a concave portion 74 and a support shaft 72. The concave portion 74 has a U-shape and is rotatably held by the support shaft 72. Recess 74
With the pin 30 movably sandwiched between the pins 30, the motor 70
Urges the lens cover 20. Lens cover 20
Is driven by the motor 70 to move the open position 200 and the closed position 2
02. The lens cover 20 is in the open position 200
And the closed position 202, the pin 30 and the support shaft 72 are rotated.
The distance between varies. The recess 74 is provided in the lens cover 20.
The pin 30 is formed so as not to come off from the concave portion 74 when moves between the open position 200 and the closed position 202. Thereby, the pin 30 can be stably fitted into the concave portion 74.

FIG. 6 is an enlarged view of the cover foot 24, the opening / closing spring 50, and the motor 70 shown in FIG. The opening / closing spring 50 has a fixed end 52 and a movable end 54 at both ends of the orbiting portion 46. The fixed end 52 is hung on the fixed end hanging portion 34, and the moving end 54 is hung on the moving end hanging portion 32. In the space between the movable end hook 32 and the fixed end hook 34, a circling portion 56 around which the spring member circulates is provided.

When the lens cover 20 moves between the open position 200 and the closed position 202, the fixed end 52 and the movable end 54 are moved.
Between the spring ends 80 varies. The orbiting portion 56 generates a force for urging the lens cover 20 in accordance with a change in the spring end distance 80. Thereby, the opening / closing spring 50 urges the lens cover 20 in the cover closing direction 212. The lens cover 20 can rotate in the cover closing direction 212 by the urging force of the opening / closing spring 50.

The spring end distance 80 is the longest when the lens cover 20 is located at the closed position 202. At this time, the spring end distance 80 is the spring end distance 80 when the opening / closing spring 50 is released. Shorter than. Therefore, even when the lens cover 20 is located at the closed position 202, the lens cover 20 is urged in the cover closing direction 212, so that the lens cover 20 can stably stop at the closed position 202 by contacting the open position stopping portion 40.

On the other hand, the rotation of the lens cover 20 from the closed position 202 to the open position 200 is realized by the motor 70. The motor 70 moves the pin 30 from the closed position 202 to the open position 200 by the driving force. Therefore, the lens cover 20 can rotate in the cover opening direction 210 by the urging force from the motor 70. Lens cover 2
0 is applied from the motor 70 to the lens cover 20.
Is greater than the force urged by the opening / closing spring 50. Therefore, when biased by the motor 70, the lens cover 20 can rotate in the cover opening direction 210 against the biasing force from the opening / closing spring 50. Further, since the orbiting portion 56 of the opening / closing spring 50 is not fixed, the orbiting portion 5 is not fixed.
The load of the spring is smaller than that of the case where the fixed spring 6 is used. Therefore, the driving force of the motor 70 can be reduced.

The motor 70 also supplies or stops biasing force to the pin 30. The lens cover 20 includes a motor 70
When it is not urged from the opening, it is urged by the opening / closing spring 50 in the cover closing direction 212 and stops at the closed position 202. From the motor 70 to the pins 30, namely the lens cover 20
When the urging force is supplied, the lens cover 20 moves from the closed position 202 to the open position 20 against the urging force of the opening / closing spring 50.
Rotate to zero. When the motor 70 stops supplying the urging force, the lens cover 20 moves from the open position 200 to the closed position 202 again by the urging force of the opening / closing spring 50.
As described above, the lens cover 20 is constantly urged from the open position 200 to the closed position 202 by the opening / closing spring 50, and further, when urged by the motor 70, the opening / closing spring 50.
Is rotated in the direction from the closed position 202 to the open position 200 against the urging of the lens cover 20, so that the lens cover 20 can freely move to the open position 200 and the closed position 202.

The operation of the lens cover 20 will now be described. When the digital camera 10 is in a stopped state, the lens cover 20 is located at the closed position 202. When the power switch 14 is turned on by the user, the motor 70 is driven, and the pin 30 rotates in the cover opening direction 210. That is, the lens cover 20 opens, and the lens unit 12 appears. With the above, the preparation for shooting is completed, and the user can shoot. When the photographing ends and the power switch 14 is turned off by the user, the motor 70 stops driving. At this time, the pin 30 moves in the cover closing direction 212 by the urging force from the opening / closing spring 50, and the lens cover 20 closes. Thus, the operation of the lens cover 20 ends.

FIG. 7 shows a digital camera 1 according to the second embodiment.
The load curve 90 of the opening / closing spring 50 at 0 is shown. The horizontal axis indicates the position of the lens cover 20, and the vertical axis indicates the opening / closing spring 5.
0 indicates a load for urging the lens cover 20. Open position 2
00 and the open / close switching position 2 provided between the closed position 202
When the lens cover 20 is located at 04, the load of the opening / closing spring 50 is the largest. When the lens cover 20 is located between the open position 200 and the open / close switching position 204,
The lens cover 20 is urged in the cover opening direction 210.
When the lens cover 20 is located between the closed position 202 and the open / close switching position 204, the lens cover 20 is urged in the cover closing direction 212. In this point, the present embodiment is different from the first embodiment.

When the lens cover 20 is located at the open position 200, the lens cover 20 is urged from the opening / closing spring 50 in the cover opening direction 210. Further, the lens cover 20 is moved to the closed position 202.
, The cover 50 is closed from the opening / closing spring 50 in the closing direction 2.
It is energized to 12. Thereby, the lens cover 20
Can be stably stopped at the open position 200 and the closed position 202.

When the lens cover 20 is located at the closed position 202, the load that the opening / closing spring 50 urges the lens cover 20 in the cover closing direction 202 when the lens cover 20 is located at the open position 200. The spring 50 is larger than the load for urging the lens cover 20 in the cover opening direction 210. Therefore, even if an external impact is applied when the lens cover 20 is at the closed position 202, the lens cover
Since 0 receives a relatively large urging force, it can stably stop at the closed position 202.

FIG. 8 shows a housing 100 of the digital camera 10 according to the second embodiment, a lens cover 20 attached to the housing 100, and an opening / closing spring 50. The load curve 90 described with reference to FIG.
The configuration of the cover foot 24 and the opening / closing spring 50 that realizes the above will be described.

The opening / closing spring 50 of this embodiment is such that when the lens cover 20 is located at the opening / closing switching position 204, the spring end distance 80 is shortest, that is, the load of the opening / closing spring 50 is maximum. As described above, the position where the fixed end 52 is attached, that is, the position of the fixed end hook portion 34 is set. In this respect, the digital camera 10 of the present embodiment is different from the first embodiment.

When the lens cover 20 moves between the open position 200 and the closed position 202, the opening / closing spring 50 rotates around the fixed end 52 while changing the spring end distance 80. When the lens cover 20 moves, the opening / closing spring 50
Rotates around the fixed end 52 while changing the spring end distance 80. At this time, the direction in which the lens cover 20 biases the opening / closing spring 50 changes. Thus, the opening / closing spring 50 moves the lens cover 20 in the cover opening direction 2 in the region between the open position 200 and the open / close switching position 204.
10 in the region between the closed position 202 and the open / close switching position 204, the lens cover 20 is moved in the cover closing direction 2
12 can be biased.

At this time, the load of the opening / closing spring 50 is determined by the spring end distance 80.
By determining the spring end distance 80 at an arbitrary position between 0 and the closed position 202, the load curve 9 described in FIG.
0 can be set freely. Therefore, the position of the moving end 54, that is, the position of the fixed end hooking portion 34 can be freely set so as to draw a desired load curve 90.

Here, the operation of the lens cover 20 will be described. When the digital camera 10 is stopped, the lens cover 20 is urged in the cover closing direction 212 and stops at the closed position 202. The power switch 14 is set by the user.
Is turned on, the motor 70 is driven, and the motor 70
The lens cover 20 is urged in the cover opening direction 210. At this time, the motor 70 moves the lens cover 20 in the cover opening direction 2
The opening / closing spring 50 is biased toward the lens cover 2.
0 is larger than the force for urging the cover closing direction 212,
The lens cover 20 moves in the cover opening direction 210.
When the lens cover 20 passes through the opening / closing switching position 204, the lens cover 20 is urged in the cover opening direction 210 by the opening / closing spring 50. When the lens cover 20 reaches the open position 200, the lens cover 20 comes into contact with the open position stop portion 40 and stops. The above operation opens the lens cover 20. As described above, when the lens cover 20 passes through the opening / closing switching position 204, the lens cover 20 is urged in the cover opening direction 210 by the opening / closing spring 50. Therefore, after the lens cover 20 has passed through the open / close switching position 204, even if there is no urging force from the motor 70, the open position 20
Can move to zero.

When the power switch 14 is turned off by the user, the motor 70 is driven, and the motor 70 urges the lens cover 20 in the cover opening direction 210. The operation of the motor 70 and the opening / closing spring 50 at this time is the same as the operation of the motor 70 and the opening / closing spring 50 when the lens cover 20 is opened, and thus the description is omitted.

The configuration and operation of the digital camera 10 other than the above are the same as those of the digital camera 10 described in the first embodiment with reference to FIGS.

As described above, in the present embodiment,
The lens cover 20 can stably stop at the open position 200 and the closed position 202. When the lens cover 20 is moved from one of the open position 200 and the closed position 202 to the other, the lens cover 20 is moved to the open / close switching position 20.
4, the motor 70 moves to the other side by the urging force of the opening / closing spring 50, so that the motor 70 may urge the lens cover 20 until the lens cover 20 reaches the opening / closing switching position 204.

Although the present invention has been described with reference to the embodiment, the technical scope of the present invention is not limited to the scope described in the above embodiment. Various changes or improvements can be added to the above embodiment. It should be noted that such modified or improved embodiments may be included in the technical scope of the present invention.
It is clear from the description of the claims.

As a first modified example, in the present embodiment, the opening and closing of the lens cover 20 is interlocked with the turning on and off of the power switch 14, but the opening and closing of the lens cover 20 is independent of the power switch 14. May be performed. That is, the trigger of the rotation of the lens cover 20 may be other than the on / off of the power switch 14. For example, the lens cover 20 may be opened and closed by an input from a user. In this case, the digital camera 10 may further include a cover opening / closing button for specifying opening / closing of the lens cover 20.

As a second modification, the lens cover 20
May be linked with the flash unit 16. For example, when the lens cover 20 is opened, the flash unit 16 may protrude. Further, for example, when the power switch 14 is turned on, the lens cover 20 may open and the flash unit 16 may protrude.

As a third modification, in the first embodiment, the opening / closing spring 50 urges the lens cover 20 in the cover closing direction 212, but the opening / closing spring 50 moves the lens in the cover opening direction 210. A configuration for urging the cover 20 may be used.

As a fourth modification, in the second embodiment, the load of the opening / closing spring 50 when the lens cover 20 is at the open position 200 is different from the load when the lens cover 20 is at the closed position 202. Although the load is larger than the load of the opening / closing spring 50, the load of the opening / closing spring 50 when the lens cover 20 is located at the open position 200 and the closed position 202 may be equal. The load of the opening / closing spring 50 when the lens cover 20 is located at the open position 200 may be larger than the load of the opening / closing spring 50 when the lens cover 20 is located at the closed position 202.

As a fifth modification, in the second modification, the opening / closing spring 50 has the maximum load when the lens cover 20 is located at the opening / closing switching position 204. The load of the opening / closing spring 50 when moving between the position 200 and the closed position 202 is not limited to this, and can be freely changed to a desired value.
That is, the position of the fixed end 52 can be set freely.

[0052]

As is apparent from the above description, according to the present invention, the driving force for moving the lens cover can be reduced, and the size of the motor can be reduced.

[Brief description of the drawings]

FIG. 1 is a diagram showing an appearance of a front surface of a digital camera 10. FIG.

FIG. 2 shows the back surface of the housing 100 and the housing 100;
FIG. 3 is a diagram showing a lens cover 20 attached to the back surface of the lens cover.

FIG. 3 is a view of the lens cover 20 viewed from an axial direction of a rotation shaft 26.

FIG. 4 is a cross-sectional view of the lens cover 20 viewed from a direction perpendicular to an axial direction of a rotation shaft 26.

FIG. 5 is a perspective view showing a configuration of a lens cover 20, an opening / closing spring 50, and a motor 70 attached to the back surface of a housing 100.

6 is a cover foot 24 and an opening / closing spring 5 shown in FIG.
FIG. 3 is an enlarged view showing a motor 0 and a motor 70.

FIG. 7 is a diagram illustrating a load curve 90 of an opening / closing spring 50 in the digital camera 10 according to the second embodiment.

FIG. 8 shows a housing 100, a lens cover 20, and an opening / closing spring 5 of the digital camera 10 according to the second embodiment.
FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Digital camera 12 ... Lens part 14 ... Power switch 16 ... Flash part 18 ... Opening
DESCRIPTION OF SYMBOLS 20 ... Lens cover 22 ... Cover plate part 24 ... Cover foot part 26 ... Rotating shaft 28 ... Through-hole 30 ... Pin 32 ... Moving end hook part 34 ... Fixed end hook part
40: Open position stop 42 ... Closed position stop 44 ...
Guide 46: Base 50: Opening / closing spring 52
... fixed end 54 ... moving end 56 ... orbiting part 70 ...
Motor 72: Support shaft 74: Recess 80: Spring end distance 90: Load curve 100: Housing

Claims (12)

[Claims] 1. An image pickup apparatus for picking up an image, comprising: a lens unit for forming an image; a lens cover movable between a closed position on a front surface of the lens unit and an open position other than the front surface; A base attached to the lens cover; an opening / closing spring for urging the lens cover when the lens cover is located at at least one of the open position and the closed position; and a direction opposite to the opening / closing spring. A motor for urging the lens cover, wherein the opening / closing spring includes two ends attached to a cover-side attachment portion provided on the lens cover and a base-side attachment portion attached to the base; A revolving portion around which a spring member constituting the opening / closing spring revolves in a space between the mounting portion and the base side mounting portion; The imaging device according to claim 1, wherein the orbiting portion generates a force for urging the lens cover in accordance with a change in an end distance. 2. The base, when the lens cover is located at the open position, when the lens cover is located at the open position, and when the lens cover is located at the closed position. The imaging device according to claim 1, further comprising a closed position stop portion with which the other end of the lens cover contacts. 3. The imaging apparatus according to claim 1, wherein the opening / closing spring biases the lens cover from one of the open position and the closed position to the other. 4. The opening / closing spring biases the lens cover in a cover opening direction when the lens cover is located at the open position, and when the lens cover is located at the closed position. 3. The imaging device according to claim 1, wherein the lens cover is disposed so as to bias the lens cover in a cover closing direction. 5. Both ends of the open / close spring are mounted such that both ends of the open / close spring are closest when the lens cover is located at a predetermined open / close switching position between the open position and the closed position. The imaging device according to claim 4, wherein: 6. A force for urging the opening / closing spring in the cover closing direction when the lens cover is located in the closed position, the force for urging the opening / closing spring in the cover closing direction when the lens cover is located in the open position. The imaging device according to claim 4, wherein a spring is greater than a force urging the cover in the opening direction. 7. The lens cover includes: a cover plate having a shape corresponding to the lens portion; and a cover foot extending from the cover plate in a plate surface direction. The imaging device according to claim 1, wherein the imaging device rotates about a rotation shaft provided in the imaging device. 8. The base has a guide for guiding an end of the cover plate farthest from the rotation axis when the lens cover moves between the open position and the closed position. The imaging device according to claim 7, wherein: 9. A power switch for starting and stopping power supply to the imaging device, wherein the motor moves the lens cover in the cover opening direction when the power switch is turned on. The imaging device according to claim 1, wherein: 10. A power switch for starting and stopping supply of power to the imaging device, wherein when the power switch is turned off, the opening / closing motor moves the lens cover in the cover closing direction, The imaging apparatus according to claim 1, wherein when the lens cover stops at the closed position, the motor stops and power is turned off. 11. A flash unit that projects from a storage position in the imaging device to a projection position outside the imaging device when capturing the image, wherein the opening / closing motor moves the lens cover in the cover opening direction. The imaging device according to claim 1, wherein the flash unit projects when moved. 12. The imaging device according to claim 11, wherein when the power switch is turned on, the opening / closing motor moves the lens cover in the cover opening direction, and the flash unit protrudes. .